Obama-Abe Meeting Could Set Tone for Trip

TOKYO—President Barack Obama arrived in Japan Wednesday for the first state visit by an American leader in nearly two decades, kicking off a weeklong swing through Asia that will afford the U.S. a chance to reassert itself in the region.

During his two-night stay here, Mr. Obama was to see the Meiji Shrine, visit the Imperial Palace, speak to students and attend a state dinner. But the time he spends with Prime Minister Shinzo Abe...